The PVC mat helps to keep the device in place, despite the dynamic movements caused by the workout. A great choice for under a rowing machine or treadmill, for example. The damping mat also significantly reduces the noise generated by the device. Also works very well as a weight lifting platform. The mat has sealed edges and a non-slip base. The simple black design is sure to work for every gym/home. The mat is resistant to wiping with regular detergents, so it is hygienic and easy to keep clean.